SU1381638A1 - Device for supplying power to moving object - Google Patents

Abstract

The invention relates to electrical engineering and can be used to supply power to an electric forklift. The goal is to expand operational capabilities while reducing size. The device contains a carriage 8, on which a roller is placed, bends around cable 9, forming a power tackle, in which the lower branch is connected to a flexible cable 7 and is rigidly fixed on the turntable 2, and the upper line is attached to the drive drum 6. The branches of the cable 9 are connected between you clamps you

Description

one

The invention relates to electrical engineering, in particular to devices for supplying power to a mobile user, for example electric forklifts.

The aim of the invention is to expand the operational capabilities of the device while reducing its size.

I

1 shows the device

supplying power to the moving object in Fig. 2 — node I in Fig. 1; in fig. 3, view A in FIG. figure 4 - node II in figure 1; figure 5 - node III in figure 1; figure 6 - plan of the working area of the moving object.

The power supply device to the movable object (electric forklift) 1 contains a rotary platform 2 mounted on the frame of the electric forklift 1 and the carrier 3. On the rotary platform there is an annular current collector 4 and on the rotary platform 3 a driving drum 6 is located. A current-carrying cable 7 is connected to the current collectors 4 and 5. The carrier 3 with the current collector 5 is mounted on the movable carriage 8. The drive drum 6 is connected to the carriage

8 cable 9. Cable 9 rounds the deflection roller 10 located on the carrier 3. On cable 9 there is a section of rigid cable 7 relative to cable 9 and cable loops 11 mounted on sliding suspensions 12, both of which are located on the lower branch

13 carrying cable. The length of the rigid mounting of the cable 7 and cable

9 is limited by the point 14 of rigidly fixing the loops of the cable 11 on the branch 13 of the cable and the point 15 of fastening the branch 13 on the turntable 2. The place where the cable 9 runs on the block 10 is indicated by the position 16. Babaran 6 has

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a drive consisting, for example, of a direct current electric motor 17, the shaft of which is connected by a chain transmission 18 to the shaft 19 of the drum 6. The brake pulley 20 is also mounted on the shaft 19 and interacts with the normally closed shoe brake 21. The electric motor 17 is fixed on the turntable 2 The tension screws 22, which control the tension of the branches of the chain transmission 18, the lower branch 13 of the carrying cable are connected with the upper (reverse) branch by means of clamps consisting of interconnected rings 23 and 24 (Fig. 4). The hinge 12 of the hinge of the cable 11 is made in the form of a ring 23 covering the cable 9, with the clamps 25 fastened to the ring 23, tightening screws 26 one of the loops of the cable 7. In the rigid mounting section of the cable 7 and the cable 9, the cable 7 is attached to the branch of the cable 13 rigid clamps 27 (figure 5).

A device for supplying power to a moving object (electric forklift) operates as follows.

Electric forklift 1 is powered by a current-carrying cable 7, which is connected to ring current collectors 4 and 5. A maneuver in the working area, the electric forklift 1 pushes the cable 9, the curved roller 10 on the carrier 3 and forming a power polyspast in which the lower branch 13 is rigidly fixed in point 15 on the turntable 2, and the second is wound on the drive drum 6. Mounted on the carriage 8, the carrier 3 with the roller 10. is oriented in the direction of the electric forklift 1, and the turntable 2 - respectively in the direction of the carriage 8, along the axis of the branches

rope drive. When a sufficient shearing force occurs during the maneuvering of the electric loader 1 in the working area, the carriage 8 moves along the guide element, providing movement of the loader 1. In the absence of such force (lateral departures), the carriage 8 is stationary and the loader movement is provided by winding (twisting) the cable 9 into drive drum 6 and razdvizhki (shift) hinges 11 of the cable 7 along the branch 13 of the cable pulley. By permanently operating the electric forklift 1, the mutual orientation of the turntable 2 and the carrier 3 eliminates the possibility of twisting the cable 9, both when the electric forklift 1 rotates around its axis, and when turning relative to the carriage 8, the presence of current collectors 4 and 5 on the turntable 2 and the carriage 8 eliminates twisting the supply cable 7, the clips consisting of interconnected rings 23 and 24, distribute the load from the weight of the cable 7 on both branches of the cable tackle, thereby halving the required for under tension pulley block branches SRI a suspended cable 7 circumferential force on the drive drum 6, wherein the design of the clips allows the mutual relative movement of the cable branches chain hoist.

The drive drum 6 performs the role of collecting and pulling the cable 9 of the device. Through the chain transmission 18, the shaft 19 of the drum 6 senses the torque from the DC motor 17 operating in the stop mode. The moment developed by the electric motor 17, and accordingly the magnitude of the necessary boosting force in the branches of the polyspast, is easily and in a wide range regulated by the voltage applied to the electric motor 17, When turned on

The mechanism for moving the electric forklift truck 1 is simultaneously energized to the electric motor 17, and the pads of the normally closed brake 21 are opened, releasing the brake pulley 20 mounted on the shaft 19 of the drive drum 6, which begins to react adequately to the movements of the electric forklift 1, 0

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Viva or twin cable 9 and supports the branches of the chain hoist, carrying on itself the cable 7 in the tensioned state. When the electric loader 1 is stopped, the electric motor 17 is disconnected, respectively, the brake 21 is activated, the pads of which seize the brake pulley 20, and thus the length of the chains of the chain pulley is fixed at this position of the electric loader 1.

The device for supplying power to the movable object in the form of a power cable polyspast, connected at one end through a deflecting roller with a movable carriage on a guide element, and the other with a movable object, on which a driving drum for winding (twisting) the cable and connecting the chain hoist with the cable loops in such a way that its weight is distributed evenly on both branches of the chain hoist, allows reducing (at least two times) the tension of the carrying cable, reducing the size of the tension device and expand operational capabilities (increase maneuverability, expand the radius of the working area, facilitate installation and maintenance, etc.),

Claims (2)

Invention Formula 1, A device for supplying power to a mobile object, comprising a guide, on which a carriage is mounted, a carrier cable, a roller placed on the carriage and fixed at one end on the consumer, a flexible cable connected to one branch of the suspension cable, alone of which, on the section adjacent to the consumer, are rigidly fixed on the cable and cable, while others are arranged to move along the cable, and the mechanism of accumulation and tension of the cable, on which another branch of the cable is stored, In order to expand the operational capabilities of the device while simultaneously reducing its dimensions, the accumulation and tension mechanism of the cable is made in the form of a driving drum mounted on a moving object, on which the second end of the cable is fixed, while the branches of the cable are interconnected by clips, implemented with the possibility of ensuring the relative movement of these branches. 2. The device according to claim 1, about t l and - with the fact that each clip is made in the form of interconnected rings. FIG. 2 1722 Fig.Z Fig4